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Vincent Boetzel

vindows

Master Student & Working Student

Target: Backend & Infrastructure Engineer

3+ years experience Java · TypeScript Docker

Projects

// Personal projects in detail

portfolio-site

Problem

I needed a modern, performant portfolio that reflects my academic and professional identity, with live GitHub data integration and a polished dark-mode-first design.

Solution

A statically-generated Astro site with an amber-accented dark theme, type-safe internationalization, automated GitHub stats fetching, and CSS-only interactive components — no client JavaScript overhead for the core experience.

Astro TypeScript Tailwind CSS v4 MDX Preact
View on GitHub
18
Pages
2
Languages
<2s
Build Time
~12KB
JS Overhead

distributed-rate-limiter

Problem

APIs need protection from abuse and overload, but traditional rate limiters using in-memory state don't scale across instances, while synchronous database logging adds unacceptable latency under high throughput.

Solution

A dual-path architecture: synchronous Redis Lua token buckets for sub-5ms rate decisions (fail-open on Redis outage), with asynchronous Kafka event streaming for audit persistence — achieving separation of concerns via independent Rate Limiter and Audit Consumer services.

Java Spring Boot Redis Apache Kafka PostgreSQL Docker Testcontainers k6
View on GitHub
<5ms
P99 Latency
5 ADRs
Architecture Decisions
Testcontainers
Test Strategy
Fail-Open
Resilience

Skills

// technologies I work with across the stack

Languages

Java (SE) TypeScript Python

Frameworks

Spring Boot Angular React adSCAILE

Infrastructure

Docker Kubernetes MySQL ArcGIS Enterprise

Tools

Claude Code Claude KI-Agenten OpenCode Vibe Coding Cesium OpenLayers

Methodologies

Data Spaces Requirements Engineering (IREB)

GitHub

// contribution activity and repository metrics
2 Repositories
0 Total Stars
Astro Top Language

3 contributions in the last year

Repositories

distributed-rate-limiter

personal project to create a distributed rate limiter to learn more about backend development

☆ 0 fork 0

Blog

// thoughts on engineering and content creation
metaportfolio

Hello World

First post on the new portfolio site — a look ahead at how I plan to work and what content to expect.

Read more →
View all posts →

Certificates

// professional credentials

AWS Certified Cloud Practitioner

Amazon Web Services Training and Certification

04/2026 Expires 04/2029

IREB Certified Professional for Requirements Engineering - Foundation Level

Certible

07/2026

ISTQB® Certified Tester Foundation Level, Syllabus 4.0

Certible

08/2026
View all certificates →